scholarly journals Low handgrip strength is closely associated with anemia among adults: A cross-sectional study using Korea National Health and Nutrition Examination Survey (KNHANES)

2019 ◽  
Author(s):  
Yu-mi Gi ◽  
Boyoung Jung ◽  
Koh-Woon Kim ◽  
Jae-Heung Cho ◽  
In-Hyuk Ha
Keyword(s):  
National Health ◽  
Subgroup Analysis ◽  
Handgrip Strength ◽  
Strong Association ◽  
The Body ◽  
Screening Tests ◽  
Nutrition Examination Survey ◽  
Strength Group ◽  
Korean Adults ◽  
Health And Nutrition

ABSTRACTBackgroundAnemia occurs because of insufficient hemoglobin, which provides oxygen to the body. Because of its close relationship with various illnesses, it must always be investigated clinically. Previous studies have demonstrated an association between hemoglobin concentration and handgrip strength. Thus, we aimed to analyze the association between handgrip strength and anemia in Korean adults to determine whether the handgrip strength test can be used as a tool to identify anemia.MethodsThe research subjects’ data were extracted from the 6th and 7th Korean National Health and Nutrition Examination Survey, between January 2013 and December 2017. Overall, data of 16,637 adults (weighted n= 9,734,598) were analyzed. Differences in sociodemographic factors (sex, age, education, income, and employment), lifestyle factors (alcohol consumption, smoking, and physical activity), and illness and health factors (body mass index, vitamin intake, iron intake, comorbid illnesses, and handgrip strength) by existence of anemia were analyzed using a chi square test. Binary logistic regression was performed to identify factors of anemia. Subgroup analysis, stratified by sex and age, was performed.ResultsAmong Korean adults aged ≥ 19 years, 745,296 (7.7%) had anemia. Higher odds ratio (OR) of anemia occurred in the weak handgrip strength group compared to the strong handgrip strength group (OR=1.92, 95% CI: 1.58-2.33). The subgroup analysis showed a higher OR for anemia in the weak handgrip strength group than in the strong handgrip strength group, regardless of sex or age. However, the results showed that this association was greater for males (OR=2.13, 95% CI: 1.35-3.34) and for those aged ≥65 years (OR=1.92, 95% CI: 1.42-2.58).ConclusionThis study showed a strong association between handgrip strength and anemia, which was particularly strong for males and those aged ≥65 years. Therefore, it is anticipated that handgrip strength can be used in anemia screening tests as a useful tool.

scholarly journals Association between aerobic exercise and handgrip strength in adults: a cross-sectional study based on data from the Korean National Health and Nutrition Examination Survey (2014–2017)

2019 ◽  
Author(s):  
Jae Yeon Seong ◽  
HyeonYeong Ahn ◽  
Yeoncheol Park ◽  
Sangah Shin ◽  
In-Hyuk Ha
Keyword(s):  
Muscle Strength ◽  
Aerobic Exercise ◽  
National Health ◽  
Handgrip Strength ◽  
Cross Sectional Study ◽  
Nutrition Examination Survey ◽  
Sectional Study ◽  
Cross Sectional ◽  
Strength Group ◽  
Health And Nutrition

Abstract Background Handgrip strength is an easy-to-assess indicator of overall muscle strength and can be used to evaluate health status. Although previous studies have reported an increase in grip strength due to aerobic exercise, such a study has not been conducted on Korean participants. This study aimed to investigate the effects of aerobic exercise on handgrip strength and examine the association between these two variables in Korean patients with hypertension or diabetes. Methods This cross-sectional study used data from the 6th and 7th Korean National Health and Nutrition Examination Survey (2014–2017). A total of 19,650 individuals aged ≥19 years who had responded to questionnaires concerning aerobic exercise and handgrip strength were analyzed. The relationship between aerobic activity and handgrip strength was examined by logistic regression analysis. Results The mean age of individuals in the low muscle strength group was higher than that in the normal muscle strength group. The odds ratio for low handgrip strength was higher in individuals who did not perform aerobic exercise than in those who performed aerobic exercise. Following adjustment for covariates, the odds ratios (95% confidence intervals) for low handgrip strength were 1.415 (0.187–1.688) in the total sample, 1.799 (1.376–2.352) in patients with hypertension, and 1.811 (1.208–2.715) in patients with diabetes. Conclusion The results of our study indicated a strong association between aerobic exercise and handgrip strength in the Korean population.

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